I finally moved into the 21st century and got myself an iPhone 4S. I've got all the corporate type apps I need, but would like to get some good music apps.I need some basics like tuner & metronome, but would also be interested in arranging & transcription apps. I don't really use it for listening (I'm old school and think mp3 fidelity bites). Free is always good, but I don't mind spending a few coins here and there. I've been doing some targeted searches at the app store, but there is so much stuff out there, and no user ratings. :-( Suggestions?